Removed unused imports.

A dizzying number of unused imports, limited to files
in src/compiler. I especially like that the unused import
option (not quite ready for checkin itself) finds places
where feature implicits have been imported which are no
longer necessary, e.g. this commit includes half a dozen
removals of "import scala.language.implicitConversions".

6 files changed, 4 insertions, 9 deletions

diff --git a/src/compiler/scala/tools/nsc/io/Jar.scala b/src/compiler/scala/tools/nsc/io/Jar.scala
index e919621338..ef2c9b13c0 100644
--- a/src/compiler/scala/tools/nsc/io/Jar.scala
+++ b/src/compiler/scala/tools/nsc/io/Jar.scala
@@ -10,7 +10,6 @@ import java.io.{ InputStream, OutputStream, IOException, FileNotFoundException,
 import java.util.jar._
 import scala.collection.JavaConverters._
 import Attributes.Name
-import util.ClassPath
 import scala.language.implicitConversions
 
 // Attributes.Name instances:
diff --git a/src/compiler/scala/tools/nsc/io/Lexer.scala b/src/compiler/scala/tools/nsc/io/Lexer.scala
index 5ffb5b4d4f..e843f8d5ce 100644
--- a/src/compiler/scala/tools/nsc/io/Lexer.scala
+++ b/src/compiler/scala/tools/nsc/io/Lexer.scala
@@ -1,8 +1,6 @@
 package scala.tools.nsc.io
 
-import java.io.{Reader, Writer, StringReader, StringWriter}
-import scala.collection.mutable.{Buffer, ArrayBuffer}
-import scala.math.BigInt
+import java.io.Reader
 
 /** Companion object of class `Lexer` which defines tokens and some utility concepts
  *  used for tokens and lexers
diff --git a/src/compiler/scala/tools/nsc/io/Pickler.scala b/src/compiler/scala/tools/nsc/io/Pickler.scala
index b03a921e87..56ff4a57ee 100644
--- a/src/compiler/scala/tools/nsc/io/Pickler.scala
+++ b/src/compiler/scala/tools/nsc/io/Pickler.scala
@@ -1,6 +1,5 @@
 package scala.tools.nsc.io
 
-import scala.annotation.unchecked
 import Lexer._
 import java.io.Writer
 import scala.language.implicitConversions
diff --git a/src/compiler/scala/tools/nsc/io/Replayer.scala b/src/compiler/scala/tools/nsc/io/Replayer.scala
index 5cb61b6cb1..e3dc8939a3 100644
--- a/src/compiler/scala/tools/nsc/io/Replayer.scala
+++ b/src/compiler/scala/tools/nsc/io/Replayer.scala
@@ -3,7 +3,7 @@ package scala.tools.nsc.io
 import java.io.{Reader, Writer}
 
 import Pickler._
-import Lexer.{Token, EOF}
+import Lexer.EOF
 
 abstract class LogReplay {
   def logreplay(event: String, x: => Boolean): Boolean
diff --git a/src/compiler/scala/tools/nsc/io/SourceReader.scala b/src/compiler/scala/tools/nsc/io/SourceReader.scala
index 569270f530..af745eb3e8 100644
--- a/src/compiler/scala/tools/nsc/io/SourceReader.scala
+++ b/src/compiler/scala/tools/nsc/io/SourceReader.scala
@@ -9,7 +9,7 @@ package io
 
 import java.io.{ FileInputStream, InputStream, IOException }
 import java.nio.{ByteBuffer, CharBuffer}
-import java.nio.channels.{FileChannel, ReadableByteChannel, Channels}
+import java.nio.channels.{ ReadableByteChannel, Channels }
 import java.nio.charset.{CharsetDecoder, CoderResult}
 import scala.tools.nsc.reporters._
 
diff --git a/src/compiler/scala/tools/nsc/io/package.scala b/src/compiler/scala/tools/nsc/io/package.scala
index 711696bb6e..c29a7c96df 100644
--- a/src/compiler/scala/tools/nsc/io/package.scala
+++ b/src/compiler/scala/tools/nsc/io/package.scala
@@ -7,7 +7,6 @@ package scala.tools.nsc
 
 import java.util.concurrent.{ Future, Callable }
 import java.util.{ Timer, TimerTask }
-import java.util.jar.{ Attributes }
 import scala.language.implicitConversions
 
 package object io {
@@ -27,7 +26,7 @@ package object io {
   type VirtualFile = scala.reflect.io.VirtualFile
   val ZipArchive = scala.reflect.io.ZipArchive
   type ZipArchive = scala.reflect.io.ZipArchive
-  
+
   implicit def postfixOps = scala.language.postfixOps // make all postfix ops in this package compile without warning
 
   type JManifest = java.util.jar.Manifest